BEYOND WC25-2D-SD19.5-WC03 Indexable U-Drill | 19.5mm CNC Fast Hole Drill
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BEYOND WC25-2D-SD19.5-WC03
Industrial 19.5mm 2D Indexable U-Drill | High-Performance CNC Boring Body
High-Efficiency 19.5mm Indexable Fast Hole Drilling
The BEYOND WC25-2D-SD19.5-WC03 is a professional indexable insert drill engineered for rapid material removal in CNC machining centers. As a specialized fast hole U-drill, it features a 19.5mm cutting diameter with a 2D depth ratio and a 25mm straight shank. This tool is optimized for internal cooling drilling in carbon steel, alloy steel, and stainless steel, ensuring maximum productivity for large diameter metal boring projects.
Model Code Specification Breakdown
Technical Data & Metric/Imperial Comparison
| Feature | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 19.5 mm | ~0.768" |
| Shank Diameter | 25.0 mm | 0.984" |
| Max Drilling Depth (2D) | 39.0 mm | ~1.535" |
| Product Model | WC25-2D-SD19.5 | WC0.98-2D-SD0.77 |
Material Excellence & Advanced Flute Design
Premium Body Material: This 19.5mm U-drill is crafted from high-strength 20CrMnTi alloy steel, subjected to vacuum quenching for superior surface hardness and anti-vibration performance. This ensures the indexable drill body remains stable under the high temperatures of high-speed drilling.
Optimized Spiral Flute (U-Slot): Features an enlarged spiral flute designed for rapid chip evacuation. The precision U-groove geometry works in tandem with dual internal cooling holes to flush chips out instantly, preventing heat buildup and tool deflection in shallow hole drilling.
Recommended Cutting Parameters
Baseline recommendations for the 19.5mm U-drill (Adjust based on material):
- Cutting Speed (Vc): 110 - 190 m/min.
- Feed Rate (f): 0.05 - 0.12 mm/rev.
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 19.5}$$
- Coolant Strategy: Internal cooling is mandatory for effective chip flushing and tool cooling.
WC Type U-Drill: Advantages & Considerations
- Uses WC series trigon inserts with 3 cutting edges (Economical).
- Stable entry even on uneven or inclined workpiece surfaces.
- Lower cutting resistance compared to square insert drills.
- Roughing tool; hole tolerance is typically (+0.1/-0.2mm).
- Requires consistent high-pressure internal coolant supply.
Verified Global Feedback
"Solid Rigid Body"
"Used for a large batch of alloy steel plates. The 19.5mm size is perfect and the body doesn't flex. Good stuff."
- Hans M. (Germany)"Great for CNC Lathe"
"Fast shipping to the US. Internal cooling works perfectly. Make sure your pump has enough pressure."
- Robert L. (USA)"Amazing Value"
"Finish is top quality. Fits WC03 inserts like a glove."
- Luca V. (Italy)"Rapid Chip Clearing"
- Hiroshi K. (Japan)
"Very stable."
- Pierre G. (France)
Expert Q&A
Q: Does this include the Torx wrench and screws?
A: Yes, each BEYOND drill body includes the necessary high-strength screws and the correct Torx wrench.
Q: Can I use this for blind holes?
A: Yes. The WC U-drill provides a relatively flat bottom, perfect for blind hole boring in CNC operations.
Q: Is internal cooling mandatory?
A: Yes. To ensure the 19.5mm diameter clears chips effectively and prevents overheating, internal coolant is essential.
Quick Tip: 2D-5D CNC Drill Selection
Choosing the right depth is crucial. 2D drills (like this SD19.5 model) offer maximum rigidity and are best for high-feed roughing. 3D to 5D drills allow for deeper holes but require significantly higher coolant pressure and reduced feed rates to avoid tool deflection.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.